Steam-generator.



- YPatentd Mar. 5, |90I. J. W. JONES.

STEAM GENERAToR.

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STEAM GENERATOR.

(Application led May 25, 1900.1

(No Model.)

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UNITED STATES PATENT Ottica.v

JOSEPH W. JONES, OF NEW YORK, N. Y.

STEAM-GENERATOR.

SPECIFICI-axon forming part of Letters Patent No. 669,280, date March 5,190i.

Application filed May 25, 1900- Serial No. 17,983. kNo model.)

To a/ZZ whom t may concern.:

Be it known that I, JOSEPH 'W. JONES, a citizen of the United States,residing at New York, in the borough of Manhattan, State of New York,have invented a new and useful Steam-Generator, of which the followingis a specification.

The general object of this invention is to provide a steam-generatorcapable of quickly producing a large amount of steam without heating inadvance any considerable body of water. In seeking this general resultthe devices are made to occupy an unusually small space, a rapid andperfect circulationy in the generator is provided for, and steam issuperheated before delivery.

In the drawings, Figure 1 is a section on the line 1 1, Fig. 2. Fig. 2is a plan view of the same apparatus, parts being omitted. Fig. 3 is asection on the line 3 3, Fig. l. Fig. 4 is a section on the line 4 4,Fig. 1, showing only a certain air-supplying tube. Fig. 5 is a viewsimilar to Fig. 1, showing the apparatus slightly modified. Fig. 6 showsa modified construction of a certain steam and water column seen inFigs. 1 and 5.

In general terms the apparatus consists of a large vertical pipe orsteam and water column inclosed in a suitable jacket, a series ofconcentric helical coils of pipe inclosed in a jacket forming aheating-chamber alongside the column and each having its endscommunicating with the upper and lower parts, respectively, of thecolumn, and means whereby the steam taken from the upper part of` thecolumn is superheated before delivery.

' In the various figures where the letters 0ccu r, Arepresents the steamand water column inclosed in a jacket B, and O C' C2 C3 O4 designateslightly-separated concentric helical coils of pipe, preferably parallelto the column and all having their upper ends D D D2, 85o.,communicating with the upper part and their lower ends E E E2, dto.,communicating with thelower part of the same column. The connections ateach end of each coil are detachable, and in the form shown in Fig. 1 alateral extension drum or pipe E5 of the column extends out beneath thecoils, so that each being detachably connected to this drum maycommunicate with the column without projecting to the cylinder elementsof the next coil. Thus when they are detached each coil mayl pass bodilyupward and be wholly withdrawn from the apparatus without disturbing thecoils without it. Below the coils,

Vwhich all have their lower ends in approximately the same plane, is aburner supplied with fuel, preferably gaseous. In the apparatus chosenfor illustration a pipe F brings liquid hydrocarbon from any suitablesource of supply, passes around in the space just above the burner, sothat the fuel may be volatilized by heat, and finally discharges the gasthrough a needle-valve F in to a mixing-chamber F2, where it is mixedwith air brought through a pipe G, curved around in the heated zonebelow the plane of the burner and opening into the mixing-chamber at Gr.

The mixed air and gas passing from this chamber strikes anupwardly-convex perforated distributing-plate H, where it is stillfurther mixed and escapes upward through the perforations and is burnedabove the plate in direct contact with the entire surface of the lowerturns of each coil, giving, as usual, a nearly colorless iiame andintense heat. Water is supplied to the steam and water column byinjecting devices, in this instance shown as a pump I, Whosedeliverypipe I' passes above the coils and descends vertically withinall the coils to a point just above lthe needle-valve, whereit turnsabruptly and passes to the column A. The pipe I is provided with anair-chamber I2 to insure steady iow, and also with avalve I3, heldclosed by a spring I4 with a force which may be varied by means of ascrew 15. The pump or other injecting device may act constantly, andwhen the resistance to the delivery of water in the column exceeds thelimit fixed in adjusting the screw I5 the valve opens and the waterescapes, but only so long as this limit is exceeded, and Hows back tothe source from which it was drawn by the pump or elsewhere, as maydesired. This feed-water in passing down within the coils is heated, yetnot to a high degree, so'long as a constant flow is maintained; but assoon as the flow ceases-that is, when the pressure opens the valvels-this vertical part ofthe pipe quickly heats, and of course expands;but such expansion is prevented from extending the pipe upward by meansof a rigid stop J,

IOO

and hence the whole expansion acts to press down the needle-valve F andshut off the supply of fuel. l

Now if the lower part of the column, and of course the lower part ofeach coil, contain water and it' the burner be lighted steam is quicklygenerated and steam and water are off the heat before the limit ofsafety is passed.

Steam for use is taken from the upper part of the column through a pipeK, which passes down through the space within the inner pipecoil andreturns, thereby securing superheating of the steam by taking it throughthe intensely hot space directly above the burner. Some portion of thissteam may control the action of the pump, or the latter may be put intooperation by the attendant after steam begins to be delivered and thenallowed to work without cessation until the generator is to be put outof action.

The jacket B consists of two parts, Van upwardly-closed cylinder B',inclosing the coils in a heating-chamber B2, and a part B3,inc.los ingthe steam and water column, and the products of combustion escapethrough a ue B4. The entire apparatus may be supported in any suitablemanner; but as shown it is supported by a simple rectangular frame L,upon which rests a clamping-ring M, embracing the steam and water columnbetween flanges A2 and extending around the generating-coils and uponthe side diametrically opposite the column, bearing a rack N, which aidsin holding the coils, although the latter, being small and light, may besupported entirely by the column itself.

In Fig. l the column Ais shown as formed with a iiange P', supportingsuperposed rings P, provided with perforations to register,respectively, with perforations S in the column and with the passages inthe coil ends D D', dac., which arescrewed into nipples on the rings.rlhe rings are held rigidly in place by a nut A5, screwing upon theupper end of the column.

In Fig. 5 the lowerends of the coils as well as the upper onescommunicate directly with the column, being provided with rings P2,supported by a ange P3. Upon these rings rests a sleeve Q, and upon thesleeves are superposed rings P4, like those below, and both sets ofrings and the sleeve are rigidly clamped by a nut P5. The column may bebuilt up as shown in Fig. 6.

It is evident that-a great heating-surface is obtained within averysm'all space, that practically no joints are subjected to directaction of the fuel, that a Very small body of water is heated at any onetime, and that the action once fully started the control is purelyautomatic.

That I claim isl. In a steam-generator, the combination with an L-shapedsteam and water column of a series of coils alongside the column, allhaving the same axis, and each having its ends communicating with thevertical and horizontal portions, respectively, of said column.

2. In a steam-generator, the combination with an L-shaped steam andwater column, of a hea ting-chamber, a series of pipes coiled to formconcentric helices within the chamber and each leading from thehorizontal portion of the column and returning to its vertical portion,a heating device below said coils, means for supplying water to thecolumn and means for discharging steam from the vertical portion of thecolumn.

3. In a steam-generator, the combination with an L-shaped steam andwater column and a series of concentric coils each leading from thehorizontal to the vertical portion of the column, means for heating thecoils, and a steam-pipe leading from the vertical portion of the columnthrough the highly-heated space within the coils.

4. The combination with an L shaped steam and water column of a seriesof concentric helical coils parallel to said column and each having itsends communicating with the vertical and horizontal portions of thecolumn, respectively, heating devices for the coils, and means forshielding the column from the direct action of said devices.

5. The combination with a jacket, of an L- shaped steam and water columnoutside the jacket, aseries of coils within the jacket each having itsends extended through the jacket and communicating with the vertical andhorizontal portions of the column, respectively, and means for heatingsaid coils.

6. The combination with an L shaped steam and water column provided witha water-inlet below and a steam-outlet above, of a series`of concentrichelical coils each having its ends detachably connected with thevertical and horizontal portions of the column, respectively, means forheating said coils, and automatic devices governing the degree of suchheating.

7. The combination with an L shaped steam and water column of a seriesof concentric helical coils each having its ends detachably connectedwith the vertical and horizontal portions of said column respectively,and each arranged for ready separation from the other concentric coils.

8. The combination with the steam and water column, of the concentriccoils alongside the column and each having its ends detachably connectedwith the upper and lower portions, respectively, of the column, of thevalved water-supply pipe leading through the axial space within thecoils to said column, the steam-pipe leading through said axial spacefrom the column; and heating Vdevices below said coils.

9. The combination with a vertical steam and Water column, of the pipeprojecting horizontally from one end thereof, the concentric coilsalongside the column and each vhaving one end detaohably connecteddirect-,ly to nhe corresponding end of the column and the other enddetaehably connected to said pipe Without passing to the cylinderelements of 1o adjacent; coils.

JOSEPH W. JONES.

Witnesses:

SGHUYLER DURYEE, M. O. SPRING.

